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Vladimir [108]
3 years ago
13

How do you find the angle of a triangle

Mathematics
2 answers:
Levart [38]3 years ago
4 0
Calculate the unknown angle. the sum of the internal angles equals 180 degrees

marissa [1.9K]3 years ago
4 0
Take both of your angles, add them up, then subtract the sum of that to 180 (40+50=90)(180-90=90) your result will be the missing angle of your triangle
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Can u help solve this W-5=5
leonid [27]
W-5=5
W= 5+5 (bringing -5 to the other side, it becomes +5)
At last, W=10.
8 0
3 years ago
What are the factors of the expression x^2+x-20?
tatyana61 [14]

Answer:

(x-4)(x+5)

Step-by-step explanation:

Find 2 numbers knowing sum (1) and product (-20). To find them, factor pairs of (-20) --> (-2,10) (-4,5). This sum is 1=b. Then, these 2 numbers are: - 4 and 5. Y=(x-4) (x+5). Hope this helped :)

3 0
2 years ago
The game is played by Drawing five white balls out of a drum of 69 white balls (numbered 1-69) and one red power bowl out of a d
blsea [12.9K]

Answer:

The expected value for purchasing one ticket for the jackpot = $77.26

Step-by-step explanation:

We first compute the probability mass function for the problem.

Probability of winning the jackpot

One has to get all 5 white ball and the one red ball correctly. There are 69 white balls and 26 red balls.

5 white balls can be selected from 69 with order not important, and 1 red ball selected from 26 red balls in

⁶⁹C₅ × ²⁶C₁ ways = 292,201,338 ways

And there are (5! × 1) different combinations of those winning numbers = 120 combinations (since order isn't important for the 5 numbers of the white balls)

Required Probability of winning

= (120 ÷ 292,201,338) = 0.0000004107

= (4.107 × 10⁻⁷)

To win, one would buy a $2 ticket, and win $193 million.

Amount of winnings = 193,000,000 - 2 = $192,999,998

Probability of losing = 1 - (Probability of winning) = 1 - (4.107 × 10⁻⁷) = 1

To lose, one would buy a $2 ticket and win nothing.

Amount of winnings = 0 - 2 = -$2

So, the probability mass function

X | 192,999,998 | -2

p | (4.107 × 10⁻⁷) | 1

Expected value = E(X) = Σ xᵢpᵢ

E(X) = [(192,999,998) × (4.107 × 10⁻⁷)] + (-2)(1)

E(X) = 79.26 - 2 = $77.26

Hope this Helps!!!

5 0
3 years ago
What are the zeros of the quadratic function f(x)=8x^2-16x-15
____ [38]

Step-by-step explanation:

<u>Step 1:  Use the quadratic formula to find the zeros</u>

<u />x=\frac{-b\pm \sqrt{b^2-4ac} }{2a}

x=\frac{-(-16)\pm \sqrt{(-16)^2-4(8)(-15)} }{2(8)}

x=\frac{16\pm \sqrt{736} }{16}

x=\frac{16\pm 4\sqrt{46} }{16}

x=\frac{4\pm \sqrt{46} }{4}

Answer:  x=\frac{4\pm \sqrt{46} }{4}

3 0
2 years ago
The net shown represents what geometric solid? A) circular cone B) cylinder C) rectangular prism D) rectangular pyramid
Ratling [72]

Where is the net? Anyway I guess it's A

3 0
3 years ago
Read 2 more answers
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